三极管输出特性，曲线可分为（）区域。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27226' and id < 2260031 and id<>'2260031' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27226' and id > 2260031 and id<>'2260031' order by id asc limit 5